Serena Williams retires injured at 3-3 in first set against Aliaksandra Sasnovich
Williams appeared to be hurt when losing her footing in fifth game of match on Centre Court
Roger Federer into second round after Adrian Mannarino retires one point into final set
Mannarino could not continue after slipping on court late in fourth set - also on Centre Court
Nick Kyrgios v Ugo Humbert 3-3 in final set when 23:00 BST curfew ends play on day two
Coco Gauff beats GB's Francesca Jones 7-5 6-4
Top seed Ashleigh Barty overcomes Carla Suarez Navarro 6-1 6-7 (1-7) 6-1
Dan Evans defeats Feliciano Lopez 7-6 (7-4) 6-2 7-5
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Federer 5-4 Mannarino*
A quick hold from Roger Federer, just the one blemish on the eight-time champion's card, and the pressure is back on Adrian Mannarino, who will serve to stay in the first set.
Tim Henman
Former British number one on BBC Two
Mannarino has done a good job of staying in touch here with Federer serving first.
Both have had a chance to break.
*Federer 4-4 Mannarino
It's sunny up north, JJ and Tim, maybe we should move the grasscourt season up here...
Tim Henman
Former British number one
Safe to say the All England Club is getting its money's worth from the roof over the past couple of days.
Jonathan Jurejko
BBC Sport at Wimbledon
Feels like we’re sat in a greenhouse sheltering. The rain is crashing down onto the roof, making it quite difficult to hear the sounds of strings walloping ball.
*Federer 4-4 Mannarino
Roger Federer edges to 15-30 before Adrian Mannarino saunters forward to meet a short ball and sweeps it away. The Frenchman whizzes down a meaty serve and finishes off the hold with another silky forehand winner.
Katie Falkingham
BBC Sport at Wimbledon
A number of matches on the outside courts have, understandably, now been cancelled.
There will be no play now until at least 5pm.
But given the absolute downpour I’ve just got caught in, I reckon it’ll be later than that. My socks are a bit soggy.
Jonathan Jurejko
BBC Sport at Wimbledon
Federer will be happy with creating four break points but he will have been fuming at his own service game.
He’d landed just 39% of his first serves before that last game, where he finally found his groove.
Federer 4-3 Mannarino*
Federer lost the first three points of the match on his serve. He's just won 10 on the spin, with back-to-back service holds to love. But we're still on serve, 4-3 in the first.
Chris Bradnam
BBC Sport commentator at Wimbledon
The scary thing is he's 39 but he moves like a 19-year-old sometimes!
Nine points in a row from Federer (on serve).
Two love holds in a row!
*Federer 3-3 Mannarino
A one-handed backhand from Federer finds the middle of the net and that's 3-3.
Jonathan Jurejko
BBC Sport at Wimbledon
One other thing to mention... Andy Murray still doesn't know who his second-round opponent will be.
The Scot has a day off playing today, but no such luck for Germany's Oscar Otte or France's Arthur Rinderknech - one of whom await him.
The pair saw their match suspended at 21:00 BST because of darkness - with the deciding set delicately poised at 9-9.
They still haven’t returned because of the rain today.
In honour of Wimbledon starting this week, the folks at BBC Archive have dug out this interview with a young, very well-spoken Sue Barker, chatting about her career and having no regrets.
Sue reached the semi-finals at SW19 in 1977 but lost to Betty Stove - a match she told BBC Sport last year that she played "horribly in, from start to finish".
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#bbctennis
That Tennis Vegan: Surely Mannarino knows that pushing isn't going to work today against #Federer, external. Only chance he has is if Federer has a really bad day and Mannarino is focused on attack. Not his usual game plan. He's a decent grass courter but needs to attack hard.
Federer 3-2 Mannarino*
Federer gets a hurry on in that game with a hold to love in under a minute. Next.
Jonathan Jurejko
BBC Sport at Wimbledon
Scanning around Centre Court at the changeover, it was interesting to see loads of fans go straight to the smartphones.
Updates from Court One? Or a WhatsApp message to a loved one?
Couldn’t possibly have been to read the build-up for England v Germany…
Spotted a couple of retro England shirts dotted around. Reckon there will be a few more sneaky looks post-5pm, possibly some ear pieces pumping through 5 Live…
Chris Bradnam
BBC Sport commentator at Wimbledon
Another good hold from Mannarino - trading well.
20 intriguing minutes.
*Federer 2-2 Mannarino
That's a total of seven break points that we've seen - four for Federer, three for Mannarino, but none taken and we're still on serve.
Kerber 6-4 3-1 Stojanovic*
Kerber's trademark crouch as she lobs Stojanovic and she consolidates her break - but is still not averse to a wobble here and there.
Federer 2-1 Mannarino
The slice does not pay off for Federer as he misses the first chance. On the second, the first serve is no good but Mannarino is then able to volley a winner at the net. Deuce.